• Journal of the Ergonomics Society of Korea
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• v.31 no.4
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• pp.493-498
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• 2012

Objective: The purpose of this study is to suggest the hierarchical structure with three layers of input task, input interaction, and input device. Background: Understanding the input interaction is very helpful to design an interface design. Method: We made a model of three layered input structure based on empirical approach and applied to a gesture interaction in TV. Result: We categorized the input tasks into six elementary tasks which are select, position, orient, text, and quantify. The five interactions described in this paper could accomplish the full range of input interaction, although the criteria for classification were not consistent. We analyzed the Microsoft kinect with this structure. Conclusion: The input interactions of command, 4 way, cursor, touch, and intelligence are basic interaction structure to understanding input system. Application: It is expected the model can be used to design a new input interaction and user interface.

• Journal of the Ergonomics Society of Korea
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• v.31 no.6
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• pp.715-723
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• 2012

Objective: The aim of this study is to investigate haptic perception related researches into three perspectives: cutaneous & proprioceptive sensations, active & passive touch, and cognition & emotion, then to identify issues for implementing haptic interactions. Background: Although haptic technologies had improved and become practical, more research on the method of application is still needed to actualize the multimodal interaction technology. Systematical approached to explore haptic perception is required to understand emotional experience and social message, as well as tactile feedback. Method: Content analysis were conducted to analyze trend in haptic related research. Changes in issues and topics were investigated using sensational dimensions and the different contents delivered via tactile perception. Result: The found research opportunities were haptic perception in various body segments and emotion related proprioceptive sensation. Conclusion: Once the mechanism of how users perceives haptic stimuli would help to develop effective haptic interactrion and this study provide insights of what to focus for the future of haptic interaction. Application: This research is expected to provide presence, and emotional response applied by haptic perception to fields such as human-robot, human-device, and telecommunication interaction.

• Journal of Korean Institute of Industrial Engineers
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• v.42 no.5
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• pp.352-359
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• 2016

The soft keyboard with touch interaction is universally available on mobile phone, a variety of previous studies with respect to the soft keyboard on smart devices had been conducted. However, previous studies of cursor control for text entry on smart devices such as smartphone did not performed. In this study, we compared three types of cursor controls (Default, 3D touch, Slide) in smartphone using Fitts' law and C-D ratio. Then we performed a laboratory experiment with three cursor control types and evaluated using cursor movement time as a quantitative evaluation and 8 subjective metrics for usability as a qualitative evaluation. Then, we discussed what types of cursor control showed better performance and subjective satisfaction through their results. From these results, this study recommended the design guidelines for cursor control on smartphones and developed its study methods as our contributions.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.46 no.5
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• pp.91-100
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• 2009

In this paper, we propose a wearable augmented reality system using gaze interaction. Gaze interaction has been considered to be the potential of easy, natural and fast way of interaction and becomes a suitable way in optical see-through HMD based wearable AR. Our system recognizes user's gaze point, half blink motion and displays the information of object seen by user to HMD. Half blink selection technique avoids the Midas touch problem and represents user's intention correctly. We've developed a AR annotation system and estimated the usability of gaze interaction. The accuracy and robustness of our technique is verified on the experimental results.

• Journal of Families and Better Life
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• v.26 no.5
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• pp.299-314
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• 2008

The purpose of this study wasto understand Theraplay interaction and to find out how Theraplay works to bring about change in withdrawn children. In exploring the meaning of Theraplay interaction, I used a phenomenology, which looked reflectively into a child's experience. Examining the situation, I found that the child had changed by "touch" with a therapist, which had been done throughout thewhole process of therapy. The child had changed from "child with horny body" to "playful child." Furthermore, I realized the four meanings (of what?) through research: "encounter", "reconstruction", "responsibility", and "immersion." Those four meaningscould have made the subject of interaction go beyond and look for its own existence. In addition, those four meanings melt together in the phenomena of interaction. There were always those four meanings throughout Theraplay interaction. This study has presented different consequences, compared to Theraplay research that is based on effectiveness, and examined the process of change that includes position tendency.

• Korean Parent-Child Health Journal
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• v.11 no.2
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• pp.93-104
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• 2008

Purpose: The purposes of this descriptive survey study were to describe Maternal-Fetal Interaction aspect according to period of pregnancy. Method: Data were collected from 273 pregnant women who visited one public health center and OBGY clinic in Gangneung city. The instrument used for this study was a self-report questionnaire. Results: During maternal-fetal interaction, there were significant differences in place, feeling, touch type, voice tone, sensitivity according to period of pregnancy. Conclusion: Maternal-fetal interaction aspect according to period of pregnancy is different. Thus, it is essential to develop maternal-fetal interaction program that includes maternal-fetal interaction aspect according to period of pregnancy.

• Journal of the Korea Convergence Society
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• v.10 no.11
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• pp.289-296
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• 2019

In the era of M-ICT (mobile information communication technology), it is becoming more and more important to establish a city brand image that is "user-centered" and creates a new experience of "interaction between people, people and things, and people and space". The experience of city users on the brand image of a city is the key factor to determine the competitiveness of the city, among which the user's research on the touch point of the city brand is particularly important. The purpose of this study is to enhance the user's brand experience and enhance the city's brand competitiveness. The research methods of this paper are literature review and investigation. Firstly, the background and purpose of the study are expounded, then the characteristics and ways of user experience touch points are defined through the document review, and the multi-latitude composition model of city brand touch points is proposed. By means of user investigation, the structural characteristics of high frequency touch points between digital touch points and physical touch points are obtained. According to the problems found in the investigation, the optimal design strategy of touch point is put forward in combination with the case. The innovation of this study is to study the relationship between the city brand and the touch point of user experience from the perspective of user experience, and propose a multi-latitude model of the touch point of city brand.

• Journal of Digital Contents Society
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• v.15 no.3
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• pp.381-386
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• 2014

Multi-touch technology with the development of IT technology, various forms of recognition technology is positioned as the technology is one. A computer and a human action virtualization technology needed to design a natural interface while haneundedo influence. Human-computer interaction possible through intuitive to many users being able to reach without having to learn the sensory capabilities, will be useful if you could use. This paper presents the design of interfaces to the smart table environment to a conventional multi-touch touch-based, real so that you can use your finger to all the purposes. Growing day by day through the ubiquitous electronic blackboard, desk, furniture and electronics industry is actively being made by IT to incorporate multi-touch based interface because the design is expected to be important. Not far in the future, new ways of learning environment by combining modernization and smart table for meeting various IoT not only affect the environment looks anticipating.

• Journal of Digital Contents Society
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• v.11 no.4
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• pp.529-536
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• 2010

Currently many people are awfully concerned about smart device in domestic and foreign mobile market. The need of smart device has been rapidly increased. Unlike a feature phone smart devices provide us with an intuitive interface which is easy to control. They are enable to smoothly interact between user and device. Though higher market outlook, there is a lack of empirical research on user interface in touch screen based on smart device. In this paper, we propose the touch interface conceptual model concentrating on user based on the result of previous research. Materials of this research are three kinds of smart devices which are currently released. Through expert's depth interview and observation of user, user's cognitive actions in smart device are defined. Since the method of the touch interface which is suitable for the action has been derived, we have proposed the conceptual model of user's cognitive action. This research imply to offer the excellent design guideline in order to implement touch interface to optimize user experience in touch screen based on smart device to release in the future.

• Journal of the Korea Computer Graphics Society
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• v.24 no.4
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• pp.21-27
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• 2018

In this paper, we propose a real-time interaction method using user's mouth wind in mobile device. In mobile and virtual reality, user interaction technology is important, but various user interface methods is still lacking. Most of the interaction technologies are hand touch screen touch or motion recognition. In this study, we propose an interface technology that can interact with real time using user's mouth wind. The direction of the wind is determined by using the angle and the position between the user and the mobile device, and the size of the wind is calculated by using the magnitude of user's mouth wind. To show the superiority of the proposed technique, we show the result of visualizing the flow of the vector field in real time by integrating the mouth-wind interface into the Navier-Stokes equations. We show the results of the paper on mobile devices, but can be applied in the Agumented reality(AR) and Virtual reality(VR) fields requiring interface technology.